How to Handle Errors Using Middleware? node js

TAKUNDA answered on January 26, 2021 Popularity 2/10 Helpfulness 1/10

answer How to Handle Errors Using Middleware? node js

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How to Handle Errors Using Middleware? node js

Comment

const express = require('express');
const app = express();

app.use(express.json());

// Example route
app.get('/', (req, res) => {
  throw new Error('Something went wrong!');
});

// Error-handling middleware
app.use((err, req, res, next) => {
  console.error(err.stack);
  res.status(500).json({ error: err.message });
});

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});

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Source: Grepper

Tags: handle javascript using

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Contributed on Dec 09 2024

TAKUNDA

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global error handling middleware express

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//app.js
//we need to put this code at last,this code run when there is no route match
app.all('*',(req,res,next)=> {
     const err= new Error(`Can't find ${req.originalUrl} on this server!`)
     err.status=404
     err.statusCode=404
    next(err)
})
//when we use next(err) it will go to error handling middleware and it will catch error and send response.
app.use((err,req,res,next)=> {
     err.statusCode= err.statusCode || 500
     err.status= err.status || 'error'
     res.status(err.statusCode).json({
          status:err.status,
          message:err.message
     })
})

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Source: Grepper

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Contributed on May 28 2022

Shirshak Kandel

0 Answers Avg Quality 2/10

express error middleware

Comment

function errorHandler (err, req, res, next) {
  if (res.headersSent) {
    return next(err)
  }
  res.status(500)
  res.render('error', { error: err })
}

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Source: expressjs.com

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Contributed on Jan 26 2021

abhishekdipu

0 Answers Avg Quality 2/10

middleware to handle thrown errors in express

Comment

app.use((err, req, res, next) => {
  res.status(500).json({ message: err.message });
});

Popularity 9/10 Helpfulness 3/10 Language javascript

Source: masteringjs.io

Tags: express

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Contributed on Nov 08 2023

Clear Cow

0 Answers Avg Quality 2/10

How to Handle Errors Using Middleware? node js

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How to Handle Errors Using Middleware? node js

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